import Vue from 'vue'
import Router from 'vue-router'
import Login from '../components/Login.vue'
import Home from '../components/Home.vue'
import Welcome from '../components/Welocome.vue'
import Users from '../components/user/Users.vue'
import Rights from '../components/power/Rights.vue'
import Roles from '../components/power/Roles.vue'
import Cate from '../components/goods/Cate.vue'
import Params from '../components/goods/Params.vue'
import GoodList from '../components/goods/GoodList.vue'
import GoodAdd from '../components/goods/Add.vue'

Vue.use(Router)

const router = new Router({
  routes: [
    { path: '/', redirect: '/login' }, 
    { path: '/login', component: Login },
    { 
      path: '/home', 
      component: Home,
      redirect: '/welcome',
      children: [
        { path: '/welcome', component: Welcome },
        { path: '/users', component: Users },
        { path: '/rights', component: Rights },
        { path: '/roles', component: Roles },
        { path: '/categories', component: Cate },
        { path: '/params', component: Params },
        { path: '/goods', component: GoodList },
        { path: '/goods/add', component: GoodAdd }
      ]
    }
  ]
})

//挂载路由导航守卫
router.beforeEach((to, from, next) => {
  //判断用户访问的是否为登录页
  if(to.path === '/login') {
    return next();
  }

  //获取token
  const tokenStr = window.sessionStorage.getItem('token');
  if (!tokenStr) {
    return next('/login')
  };
  
  next();

})

export default router